macrodyne,
inc.

Integrated
Recording Units for Transient Fault and Long Term Disturbance Events

Model 1692 Integrated Recording Unit

The Model 1692 Integrated Recording Unit records both transient fault and
long term disturbance events with instrument class accuracy, adding a new
dimension to power system recording instruments.

Performance

The Model 1692 features a 16-bit A/D converter per channel and advanced
digital filtering techniques to provide outstanding recording fidelity. An
adaptive anti-aliasing filter rejects out-of-band signals to further ensure a
high degree of accuracy. All input channels are DC coupled so that
transducers may be monitored and offset currents properly recorded.

Operation

System functions, including virtually all triggering, storage, control and
communications are directed by the instrument's Pentium processor, providing
optimum flexibility. This software control allows the user to take full
advantage of the powerful facilities. An external GPS clock may be used to
implement synchronous sampling with the degree of accuracy necessary for phasor
computation and recording for use in state estimation an protection and control
functions. In addition the data can be used in dynamic stability
monitoring applications, load modeling and system model verification.

Configuration

The Model 1692 IRU is available in several configuration options offering up
to 32 analog and 64 digital input channels in a single cabinet and a variety of
memory options to accommodate the most demanding data acquisition
requirements. Larger configurations up to 256 analog and 512 digital
channels are accomplished by using several fiber optic coupled cabinets in a
master/slave configuration. For less demanding applications a 12-bit input
channel with reduced filtering is provided.